1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab610a6c6834062b54323395080cb2e57f81216526859068d3041922ed4246d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5c1a84b0-fbda-4a06-a87c-34395961ce6d.json and https://artists.proofprofile.net/proofs/artist/5c1a84b0-fbda-4a06-a87c-34395961ce6d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6aa7471da64693d8d922418996418b1462ae061153078de2da785529470d0ba. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTVM2454821.
Bloquinho de Bandido 1.0: Rala no Bico / Senta pro Trafica / Soca Tudo / Vem Fuder Comigo e Minha Amiga / Fica de 4 Bandida / Xereca Pisca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32f916135db5e2ca31a66d4891aecb2b8ae3edcca8f9be6b353c8461279d29f. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2441987.
Bloquinho Demonhão: De 4Tão / Que Isso Thuca / Que Blog É Essa / Vai Me Machuca / Rala no Bico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c15abc9e54bd0a9e626f7ef8389ba85bedbb92b726c0c1fc134ea9f5dab0cb. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG2543030.
Bloquinho Respeita a Patente: Sarra no Bico / No Trafica / Na Vara / Pede na Boca / Onda Maluca / Trepa
Bloquinho Respeita a Patente II: No Bico / Senta na 9 / Bate Tcheca / Trepa / Se Eu Engravidar / Sequencia de Bota / Aplica
Putaria do Rekruta: Senta pro Mal Elemento / Me Comeu / Botar Tudão / Me Bota / Apaga a Luz e Toma / Ate Amanhecer
Bloquinho Alta Putaria: Vou Te Comer Chapado / Xereca no Bico / Sapeca / Bate na Cara / No Frente / Sua Ex É uma Delicia